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View Full Version : The greater the universal constant, the smaller the equation.

OC
01-20-2003, 04:11 PM
Yes?

-OC

johnnymk
01-20-2003, 05:32 PM
DUH?

Jenny
01-20-2003, 05:53 PM
What?

InfiniteNothing
01-20-2003, 05:56 PM
I'd say no. For example we could have PV=nRT as the gas constant but if we want to use the more accurate vander walls equation it becomes RT=(V/n-b)(p+A(n^2)/V^2) The next best thing is the Redlich-Kwong equation P=nRT/(V-nb)+a(n^2)/V(V+bn)(T)^(1/2) This increasing of complexity goes on. I've heard of PV=nRT formulas that have 27 paramaters (a,b,c,d...)

For somethings, what may seem a simple universal constant is only an aproximation. Sometimes we see things that look universal and simple but I don't think it happens all the time.

Kevster
01-20-2003, 06:34 PM
Originally posted by InfiniteNothing
I'd say no. For example we could have PV=nRT as the gas constant but if we want to use the more accurate vander walls equation it becomes RT=(V/n-b)(p+A(n^2)/V^2) The next best thing is the Redlich-Kwong equation P=nRT/(V-nb)+a(n^2)/V(V+bn)(T)^(1/2) This increasing of complexity goes on. I've heard of PV=nRT formulas that have 27 paramaters (a,b,c,d...)

For somethings, what may seem a simple universal constant is only an aproximation. Sometimes we see things that look universal and simple but I don't think it happens all the time.

The same goes for communications systems engineering. To get the efficiency of an antenna I can use a very good approximate calaulation that only has 4 variables or I can go the 19 variable route to get the much more exact value. It essentially is a matter of how exact you want to be.

Hunny
01-20-2003, 08:20 PM
Originally posted by InfiniteNothing
I'd say no. For example we could have PV=nRT as the gas constant but if we want to use the more accurate vander walls equation it becomes RT=(V/n-b)(p+A(n^2)/V^2) The next best thing is the Redlich-Kwong equation P=nRT/(V-nb)+a(n^2)/V(V+bn)(T)^(1/2) This increasing of complexity goes on. I've heard of PV=nRT formulas that have 27 paramaters (a,b,c,d...)

For somethings, what may seem a simple universal constant is only an aproximation. Sometimes we see things that look universal and simple but I don't think it happens all the time.

:hmm: I'm with Jenny ...and...this is definately a perfect example of why a simple yes or no answer would not have been appropriate...I will say that after reading the question and the answer...I'm still with Jenny :rolleyes:

sho.gun
01-20-2003, 09:38 PM
This all depends on the elasticity of the fabric of time although I've noticed that my mother's mood may also have an effect.

InfiniteNothing
01-20-2003, 09:45 PM
Originally posted by Hunny

:hmm: I'm with Jenny ...and...this is definately a perfect example of why a simple yes or no answer would not have been appropriate...I will say that after reading the question and the answer...I'm still with Jenny :rolleyes:
Here in the GotApex boards our answers are scrutinized and over analized (ie, check my response to your yes/no post) and a simple yes or no would have been seen as an opinion rather than a theory. I wanted to back my theory up with a little proof. Also, a simple yes or no would not have answered the question as the answer is "sometimes".

Speedfreak
01-20-2003, 09:49 PM
Typically.

whitak24
01-21-2003, 11:21 AM
Originally posted by Hunny

:hmm: I'm with Jenny ...and...this is definately a perfect example of why a simple yes or no answer would not have been appropriate...I will say that after reading the question and the answer...I'm still with Jenny :rolleyes:
i'm not sure if you're kidding here....i hope so.

if you don't care about the question, or don't understand it, then fine. but if people want to discuss it indepth (which is really the only way to accurately discuss a science or math issue), then more power to them.

for the record, i have very little clue what you guys are talking about and could basically care less :heh:

Hunny
01-21-2003, 03:27 PM
Originally posted by whitak24

i'm not sure if you're kidding here....i hope so.

if you don't care about the question, or don't understand it, then fine. but if people want to discuss it indepth (which is really the only way to accurately discuss a science or math issue), then more power to them.

for the record, i have very little clue what you guys are talking about and could basically care less :heh:

I think we're all in agreement... :cool: